Sofa bed



Dec. 16, 1924- 1,519,674

D.F.DYKE

SOFA BED Original Filed Nov. 5, 1917 2 Sheets-Sheet 1 Dec. 16, '1924.1,519,674

D. F. DYKE SOFA BED Original Filed Nov 5, 1917 2 Sheets-Sheet 2 IlllllllllnHHIHHIHIWIWW I V i m If! I I 6 i z W ll. 9 W4 llw 8 O 0 0|, F;r /5 I .22 1 .9 M 1+ 43 l I J a: I 2 L) M 2/ {I '0 2 I 42 I 44fizyazorjdiffiiflfij/M lffim nga Patented Dec, 16 1.924.

UNITED fiTA'I'ES PATENT, OFFICE.

DARRELL F. DYKE, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE. SENG COMPANY, ACOR- PGEt-ATION OF ILLINOIS.

sore BED.

Application filed. November 3, 1917, Serial No. 200,019. Renewed April23,1919. Serial No. 292,172.

' tails of the construction shown in the above mentioned application,and to provide for the assembling of the parts in the sofaframe in aconvenient manner, and also for their shipment.

Other objects and advantages of the invention will hereinafter appear,and the novel features thereof will be particularly pointed out in theclaims.

Referring to the drawings Fig. 1, is an elevation of a sofa-bedembodying my invention, one end of the sofaframe being removed. and thebed-frame or mattress-support being illustrated as opened and ready foruse as a bed;

Fig. 2, is a detail in front elevation of one of the sofa-ends;

Fig. 8 is a similar view of one of the sofaends in side elevation;

Fig. a is a view similar to Fig. 1, the bed being folded and the partsin position for use as a sofa;

Fig. 5 is a detail in elevation of one of the link carrying-plates; and

Fig. 6 is a detail in elevation of the lower end of one of thebed-supporting links.

Similar numerals of reference indicate similar parts in all the figuresof the draw ings.

It will be understood that I have herein illustrated the conventionalform of sofaframe, and therefore the same comprises the oppositesofa-ends 1. These ends, it will be understood, are connected as isusual at their rear sides, and there is also included in theconstruction any desired form of movable back, the latter being capableof being raised to permit of the unfolding of the mattress-support orbed and also of being lowered to engage with the seat when the latter isin its normal position. As these parts form no part of my invention,they have been omitted in the illustrations.

L lie mattress-support, in this instance, consists of the innerhead-section 2, the outer foot-section 8, and the intermediateconnecting section l, the ends of the latter being pivoted as at 5 tothe adjacent ends of the two sections 2 and 3, so that as is usual inthis class of beds, the foot-section is capable of being foldedrearwardly upon and over the head-section and combining therewith toproduce a rectangular intermediate space for the accommodation of thebedding.

The seat 6 is invertible in front of the sofa-frame and is provided atits rear edge with an upwardly disposed pair of legs 7 which when theseat is inverted in front of the sofaframe rest upon the floor andsupport the front of the seat together with the parts carried by thelatter. The front edge of the seat is provided with a depending frontboard 8, which board fills a portion of the space between the sofa-endsand below the seat when the latter occupies its normal position. To theinner face of the board 8, is secured near each end of the seat abracket-plate 9, of somewhat greater depth than the board.

Secured to the inner face of each of the front posts 10 of the sofa-ends1 is an upwardly disposed hook 11, formed on a baseplate 12 havingsuitable perforations for the reception of screws by means of which saidbase-plate is secured in position upon the post.

The front board 13 of the sofa-frame is of such length as to fit betweenthe front posts 10 of the companion ends 1 but is disconnected from saidposts, and of such width as to complete the filling of the space belowthe board 8 of the seat 6.

To the inner face of the board 13, and at each end of the same, issecured by bolts or screws, a flanged link-plate 14, (for detail ofwhich see Fig. 5,) said plate being provided at its upper end with aninclined extension 15 forming a guide, which engages a supporting link29 on one side of the mattress support, the two guides confining thesupporting parts between them to prevent side swaying or wabbling of themattress support and below the guide with an elongated somewhatpear-shaped opening 16. These plates being rigidly secured to the board13 are adapted to removably engage over the hooks 11, the latter passingthrough and interlocking with the openings 16 just referred to. Eachplate 14 near its lower end is provided with a bolthole 17, and thelatter coincides with a similar hole 18 formed in the adjacentsofa-end 1. Through these holes is passed a securing bolt 19, at theinner end of which is threaded preferably a winged-nut 20. By tighteningthe nut upon the bolt after the plates are engaged by the hook saidplates and the front board 13 become rigidly though detaehably mountedin position in the sofa-frame.

Pivoted as at 21, at their lower ends and at points near the lower endsof the plates 14 and at the inner sides of the same, is a pair ofvertically disposed bell-crank levers 22, which when elevated projectabove and in front of the board 13. The front ends of these levers 22are pivoted, as at 23, to short links 24, the front ends of the latterbeing pivoted as at 25, to the brackets 9 of the seat 6. In rear of thebell-crank levers there are pivoted to the brackets 14, as at 26, links27, to the upper ends of which there are pivoted as at 28, somewhatlonger equalizing links 29, the opposite ends of which are pivoted as at30, to the brackets 9, of

the seat eccentrically with relation to the points of pivot of the links24. The equalizing links 29 intersect or cross the bell-crank levers 22,adjacent the angles of the latter and atsueh points said links andbell-crank levers are pivoted together as at 31. There are also pivotedto the plates 14, intermediate the bellcrank levers 22, and the liulrs27, as at 32, intermediate bed-supporting links 33, the same projectingabove the plates 14, and pivoted as at 34, to the inner or headsectionof the mattress support at an intermediate point of the same. Thesesupporting-links 33, are provided adjacent their middles with aperturedprojections 35. to each of which is attached the front end of acoiled-spring 36, the rear end of the spring being engaged by anaperture formed in the upper end of an adjacent supportingbracket 37,-one of which is secured by screws 38, to each of the ends 1 ofthesofa-frame. The brackets 37, have the r upper ends angularly bent, as at39, said brackets being in the same horizontal plane and serving assupports for the rear end of the upholstered seat 6, when the latteroccupies'its normal position, the front end of the seat being sup portedby the front board 13, upon the upper end of which the dependingextension 8, of

the seat rests.

To each of the ends 1, near its bottom and.

in front of the supporting-brackets 37, is secured a substantiallyrectangular plate 40, the same being held in position by means of screwspassed through suitable pe'rforations in the plate. Each plate isprovided near its lower edge with a stud 41, and below the same and inrear with'a stop 42, correspondingstop 43, also being formed at theupper front corner of the plate. A pair of rear supporting-links 44, arepivoted as at 45, to the opposite sides of the rear or head-section 2,near the rear end of the latter, and have their lower ends provided withslots 46, which removablv engage and are designed to be pivotallymounted upon the studs 41, oi? the plates 40. Any desired means may beemployed for securing the links 44 upon the studs, but in the presentinstance, I pivot, as at 47, to each of the links 44 and above theirlower ends, a gravity locking dcg 48, the lower end of which at one sideis provided with a slot 49, which intersects and is at a right angle tothe slot 46 of the link. This dog 48 may be provided at one side with alug 50, for conveniently operating the same. The links 44 being inengagement with thestuds 41, in order to secure said links againstaccidental disconnection, it is simply ne essary to swing the dogs 48 totheir lower vertical positions, whereby their slots dis posed at rightangles to theslots 46 of the links, are caused to engage the studs 41.-The stops 42 or the plates serve to limit the downward movements of thelinks 44, and. the stops 43 of said plates, in a similar manner serve tolimit the vertical movements of said links.

Pairs of frontsuspension-links 51 are pivoted at their upper ends as at52 to the opposite sides of the foot-section 3 of the inattress-support,and at their lower ends.

as at 53 to brackets 54, secured to the underside oi. the sofa-seat,said links aiding in the support of said toot-section. Similar inclinedlinks 55 are pivoted at their upper ends, as at 56, to the oppositesides of the intermediate mattresssection, and at'their lower ends as at57 to brackets 58, secured to the underside of the seat 6 in rear of thebrackets 54, and serve to aid in the support of said intermediatesection.

59 designates an arched transverse brace, the ends of which are rigidlysecured to the intermediate mattress supporting-section 4. Theintermediate or arched portion of this brace extends below themattress-support when the latter is in its operativeposition and restsupon the links 24 heretofore mentioned, so that said brace vterms anadditional support for the middle of the bed. iVhen the bed is folded,(as shown in Fig. 4), the arched brace 59 preferably rests in dependingstirrups or rests 60, of which there is a pair attached to the frontboard 13 i of the sofa-frame. These stirrups at their upper ends overlapthe securing flanges of the plates 14, so that the same screws employedfor hoiding the plates 14 in position against th board 13 may beutilized to secure the stirrups 60. The stirrups xtend below the platesand constitute efficient supports for the front portion of themattresssupport when the latter is in its folded position (see Fig. 4).

If desired, this structure may be augmented by any convenient form offolding headrest, the same preferably being of such design as will tendto retain the mattress and other bedding while the mattress-support isbeing folded and unfolded.

In the present instance, short vertical standards 61, formed ofangle-iron are secured to one or both of the side bars of thefoot-section 3, and mounted in apertures formed in the standards are thelower bent ends 62, of a swinging bail 63, of wire.

This bail has internal braces 64, the middle of which is extended as at65, and connected to a coiled spring 66, the lower end of which springis connected to the side bar of the foot-section. By swinging the bailto either side of its axial bearing the spring will serve to retain thesame in that position. Hence if the bail is swung to a vertical positionit will serve as a head-rest, and when in its lowered position it willserve to clamp and retain the bedding upon the mattress-support.

Taking the parts in their folded position, as shown in Fig. i, it willbe seen that, as before stated, the seat 6 rests upon. thesupporting-brackets 39 and the front board 13. To open the bed it issimply necessary to grasp the rear portion of the seat and give it aninitial upward impulse, whereupon the linkage system described, assistedby the coiled springs 36 will begin to operate. During this movement,the supporting-links 32 and 44, leave their lower positions and swingupward, carrying the bed structure with them, such swinging movements ofthe links continuing until the rear links 44 abut against the stops 43,at which time said rear links will be in substantially a verticalposition and the links 33 slightly inclined forward. The movement of theseat being continued, the remaining sections of the mattress-supportwill unfold until they assume a position in the same plane as theheadsection. As this second step in the operation of unfolding the bedtakes place, the bell-crank levers and links 27 swinging on their pivots21 and 26, respectively, move upward, and by reason of the eccentricalrelation between the pivots 25 and 30, the seat 6 is completelyinverted. The links 51 and 55 swing to their supporting position untilthe supporting-legs 7 of the seat reach the floor, at which time theupper edge of the extension 8 of the seat abuts against the under sidesof the equalizing links 29, whereupon further movement is arrested.

It willv be apparent that by disconnecting the plates 1% from the ends1, in the manner heretofore described, and likewise disconnecting thesupporting-links as from the brackets 10, the mattress-supporting frameand its operating links may be compactly folded upon and secured to thesofa-seat and shipped in this condition. The sofa-frame itself may beconstructed in knocked-down manner, so that the entire structure willoccupy but little space during shipment.

Having described my invention, what I claim is:

1. In a sofa-bed, the combination with the sofa-frame, and a sofa seatinvertible in front of the frame, of plates detachably connected to theends of the frame, a front board rigidly connecting said plates, meanscarried by the plates adapted to invert the sofa-seat as the same isswung into and out of the sofa-frame, a folding mattress support, andmeans for raising, lowering, and supporting the same, saidmattress-support comprising supporting-links pivotally connected to saidplates and operatively con nected to said seat.

2. In a sofa-bed, the combination with the sofa-frame, and a seatadapted to be inverted in front of the same, of hooks secured to theopposite ends of the sofa-frame, opposite plates removable engaging saidhooks bolts removably connecting the plates and sofa-ends, mechanismcarried by said plates and connected to the seat and adapted to in vertthe latter when swung into and out of the sofa-frame. a foldablemattress-support, links between the same and the seat, mechanism carriedby the plates and connected to the mattress-support, and adapted toguide the same, and a connectingboard permanently secured to the platesand bythe latter secured to the sofa ends.

n a sofa-bed the combination with a frame, having depending stirrups, ofan invertible seat, a superimposed foldable matllti tress-support,mechanism for turning the seat as the same is swung into and out of theframe, suspension means between the seat and the frame and themattress-support, and an arched brace connecting the opposite sides ofthe mattress support and depending from the same and adapted when themattress-support is folded to rest in said stirrups.

4-. In a sofa-bed, the combination with the sofa-frame. and aninvertible seat, of a superimposed foldable mattress-support,connections between the same and the seat and the frame. stirrupsdepending from the frame, a system. of links connected to the frame andseat and adapted to turn the same, and anarched brace connecting theopposite side-bars of themattress-support and adapted when themattress-support is unfolded to rest upon the system of links and whenfolded to rest within the depending stirrups.

In sofa-bed, the combination with the sofa-frame, of a foldablemattress-sopport detachahly connected with the frameJrear platesconnected to the sofa-ends and provided with upper and lower stops andan intermediate stud, and links connected to the mattress support andhaving their lower ends slotted to removably engage said studs. andprovided aborc their ends with pivoted dogs having slots at an angle tothe slots of the links and adapted to engage said studsQ 6. In asofa-bed the combination with the sofa-frame, and a movable seat, ofopposite plates secured to the sofa-ends and provided with upwardlydisposed extensions forming guides, a link system connected to theplates and to the seat and adapted to turn the latter and confinedbetween said guides, a superimposed folding mattress-support, and meansfor connecting the same to the seat and to the sofa-frame.

7. In a sofa-bed, the combination with the sofa-frame, and a seatindependent of the same, of a mattress-support connected to and adaptedto unfold above the seat as the latter is swung outward and inverted,mechanism for guiding the mattress-support as it is folded and unfolded,a pair of plates having means for detachably securing them to thesofa-ends and carrying said mechanism, a front-board which remains fixedas the mattress-support and seat are folded and unfolded connecting saidplates, interposed between and serving to connect'the sofaends, andmeans carried by the plates adapted to turn the seat the same is movedin and out of the sofa-frame.

8. In a sofa-bed, the combination with the sofa-frame, of a foldahlemattress-support detachably connected with the frame, opposite rearplates connected to the sofa-ends and eachprovided with angularlydisposed stops projecting therefrom, and links connected pivotally tothe mattress-support and removably'pivoted at their lower ends to theplates between the stops.

9. In a sofa-bed, the combination with a sofa-frame, a rest dependingfrom the sofaframe, and, a mattress-support adapted to fold within thesofa-frame, of a cross-brace connecting the opposite sides of themattresssupport and adapted when the mattress-support is folded into thesofa-frame to become seated in said rest.

10. In a sofa bed, the combination with a frame having spaced endsunconnected at the front, of supporting hooks at the inner sides .of theframe ends, a front board, plates rigidly connected. to the ends of thefront at the front, a sofa seat and hinges therefor,

a folding mattress support and links connected thereto, and meanscomprising a pair of end plates connected at the ends of a front boardbefore inserting it in the frame and to which the seat hinges and onepair of the supporting links are connected, and means for detachably butrigidly connecting the end plates to the frame ends so that the frontboard will be held rigidly in position when the seat inverted over thefront board in front of the frame to extend the folding mattresssupport, the seat and front board being bodily attached and removed withthe mattress support.

12, In a sofa frame, thecombination with a sofa frame consistingofspaced end frames connected at the back but not at the front, a sofaseat, a sectional folding mattress support including supportinglinks, apair of hinges for the seat, and means separately connected to thehinges and to the mattress support a pair of links thereof, for mountingthe seat and the mattress support in the sofa frame, said meanscomprising a pair of end plates, a front board rigidly connectedto theend plates before they are inserted in the frame, and means fordetachably but positively connecting the plates at the front of the sofaframe so that the front board will be held rigidly in position at thefront of the. sofa frame without direct attachment thereto.

13. In a sofa-bed, the combination with a sofa-frame, of a sectionalfolding bed bottom comprising a plurality of sections, a

pair of side plates detachably connected to the soft -ends, supportinglinks for the Sectlons, one pair of which has end slots and'hingedlocking dogs each with a slot at an angle to the end slot formaking a detachableconnection' with the ends of the sofa frame, andanother pair of which is pivotally connected to the plates, andmeans-"attachedto the other links and to the plates for folding andunfolding the bed sections.

1-1. In a sofa bed, the combination with a frame having spaced ends, oftwo pairs of supportingplates for attachment to the ends, and asectional folding bed bottom including two pairs of links pivoted to onesection, each separately connected'with a supporting plate, one pair oflinks being detachably connected to its plates and the other platesbeing detachable with the links from the frame ends and pivoted linkse:-: tending from each of the other sections for attachment to theunderside of a seat.

15. In a sofa-bed, the combination with a sofa-frame having spaced ends,of a hook projecting inwardly from each end, a detachable foldingmattress-support comprising a plate supported at each end y said hook, afront board constituting spacing means rigidly connecting the plates,links attached to the mattress-support having a separate detachableconnection with the frame ends, and means connected to such plates andto the mattress-support sections for folding them and extending themfrom the sofa-frame, the mattress supportinglinks and said means beingbodily attachable and removable from the frame.

16. In a sofa-bed, the combination with the sofa-frame, of a seatinvertible at the front of the frame, a sectional mattress frame, meansin connection with the seat for raising, lowering, andsupporting themattress-frame, a connection between the frame and the mattress-supportcomprising a pair of opposite plates each of which is linked to themattress-support and hinged to the end of the seat, and another linkconnecting each side of the rear section with the adjacent end of theframe and having a pivoted stop plate attached to the frame with stopsthereon for limiting the movement of the links and consequently themattress frame in both directions.

17. In a sofa-bed, the combination with a frame, of a sectionalmattress-support foldable in the frame and adapted to be moved to ahorizontal position extending out of the frame, a pair of linkspivotaiiy connected in the frameto each side of the rearmattresssupporting section, a spring at each side of themattress-support connected at one end to one of the links and at theother end to the sofa-frame, the spring being under tension at all timesto ease the mattress-support into and out of the frame, and a Stop plateto which the other link at each side of the frame is pivoted forlimiting the movement of the link and the extension of the spring inboth directions.

18. The combination with a sofa frame having spaced ends, with a hookand a separate pivotin stop plate fixed on the inside of each end; amoveable sofa-seat; and a detachable folding bed bottom comprising apair of end plates engaging over the hooks, and links detachablyconnecting the bed bottom to the stop plates, and other links connectingthe bed bottom to the end plates and to the seat, for folding andextending the bed bottom when the seat is moved.

19. The combination with a sofa frame, of an invertible seat and fixedrests therefor in the ends of the frame, a sectional folding bed bottomand having links connecting it to the frame ends and to the seat forraising, lowering, and supporting the bed bottom, and a spring connectedto the rest and to one of the links at each end of the frame andconstantly under tension to as sist in raising the seat from the restand to ease the parts in returning the seat to its position engaging therests.

DARRELL F. DYKE.

Witnesses:

FRANK J. SENG, F. H. ELWERT.

